Description: Proprietary 'Real Motocross Dynamics' system - The first game with realistic motocross physics. 2 time AMA Nationals Champion Ricky Carmichael - Race as the future of motocross. High flying stunts and aggressive pack racing action. 6 play modes from Championship to Head-to-Head. Over a dozen realistic motocross and supercross tracks. True weather effects actually influence bike and rider performance. 9 customizable dirt bikes and a killer soundtrack.